On the relationship between pregnancy weight gain and chorioamnionitis

Area of Science:

• Obstetrics and Gynecology
• Maternal-Fetal Medicine
• Neonatal Health

Background:

• Chorioamnionitis, an infection of the amniotic fluid, is associated with adverse pregnancy outcomes like preterm birth and increased neonatal morbidity/mortality.
• Common causative agents include Streptococcus sp., E. coli, and Ureaplasma sp.

Purpose of the Study:

• To investigate the association between maternal gestational weight gain and the incidence of chorioamnionitis.
• To determine if inadequate gestational weight gain is a risk factor for chorioamnionitis, especially in cases of preterm delivery.

Main Methods:

• A case-control study involving 62 cases and 168 controls of Israeli women.
• Univariate analysis and logistic regression were used to analyze the data, controlling for various maternal and obstetric factors.

Main Results:

• Univariate analysis revealed a significant increase in chorioamnionitis among mothers with inadequate gestational weight gain who delivered before 33 weeks gestation.
• Logistic regression indicated that inadequate weight gain significantly elevated the risk of chorioamnionitis in women delivering very prematurely.

Conclusions:

• Inadequate gestational weight gain is a significant risk factor for chorioamnionitis, particularly in very preterm deliveries.
• The distinct risk factors observed suggest that the etiologies of pre-term and full-term chorioamnionitis may differ.